Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_10_Buildings.Controls.OBC.ASHRAE.G36.ZoneGroups.Validation.ZoneStatus.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.x/package.mo", uses=false) Using package Buildings with version 10.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.x/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: "" <> buildModelFMU(Buildings.Controls.OBC.ASHRAE.G36.ZoneGroups.Validation.ZoneStatus,fileNamePrefix="Buildings_10_Buildings_Controls_OBC_ASHRAE_G36_ZoneGroups_Validation_ZoneStatus",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Controls.OBC.ASHRAE.G36.ZoneGroups.Validation.ZoneStatus,fileNamePrefix="Buildings_10_Buildings_Controls_OBC_ASHRAE_G36_ZoneGroups_Validation_ZoneStatus",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.00149/0.00149, allocations: 108 kB / 15.61 MB, free: 152 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001674/0.001674, allocations: 197 kB / 16.53 MB, free: 6.664 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.366/1.366, allocations: 222.9 MB / 240.2 MB, free: 4.395 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.1-maint.10.0.x/package.mo): time 2.442/2.442, allocations: 437.1 MB / 0.7104 GB, free: 5.047 MB / 0.5606 GB Notification: Performance of FrontEnd - loaded program: time 0.001263/0.001263, allocations: 63.91 kB / 0.8694 GB, free: 4.578 MB / 0.7169 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5037/0.5049, allocations: 151.6 MB / 1.017 GB, free: 2.504 MB / 0.7637 GB Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.ASHRAE.G36.ZoneGroups.Validation.ZoneStatus): time 0.003291/0.5083, allocations: 2.097 MB / 1.019 GB, free: 408 kB / 0.7637 GB Notification: Performance of NFInst.instExpressions: time 0.002122/0.5104, allocations: 1.619 MB / 1.021 GB, free: 14.76 MB / 0.7794 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003033/0.5107, allocations: 8 kB / 1.021 GB, free: 14.75 MB / 0.7794 GB Notification: Performance of NFTyping.typeComponents: time 0.0002531/0.511, allocations: 82.98 kB / 1.021 GB, free: 14.67 MB / 0.7794 GB Notification: Performance of NFTyping.typeBindings: time 0.0002216/0.5113, allocations: 67.2 kB / 1.021 GB, free: 14.61 MB / 0.7794 GB Notification: Performance of NFTyping.typeClassSections: time 0.0008085/0.5121, allocations: 371.2 kB / 1.022 GB, free: 14.25 MB / 0.7794 GB Notification: Performance of NFFlatten.flatten: time 0.0007005/0.5128, allocations: 0.7791 MB / 1.022 GB, free: 13.46 MB / 0.7794 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0005701/0.5134, allocations: 455.3 kB / 1.023 GB, free: 13.01 MB / 0.7794 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0002968/0.5137, allocations: 298.9 kB / 1.023 GB, free: 12.71 MB / 0.7794 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002818/0.5139, allocations: 334.5 kB / 1.023 GB, free: 12.39 MB / 0.7794 GB Notification: Performance of NFPackage.collectConstants: time 0.0001008/0.5141, allocations: 99.88 kB / 1.023 GB, free: 12.29 MB / 0.7794 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0001432/0.5142, allocations: 104 kB / 1.024 GB, free: 12.19 MB / 0.7794 GB Notification: Performance of NFScalarize.scalarize: time 0.0001166/0.5143, allocations: 183.4 kB / 1.024 GB, free: 12.01 MB / 0.7794 GB Notification: Performance of NFVerifyModel.verify: time 0.0002478/0.5146, allocations: 358.2 kB / 1.024 GB, free: 11.66 MB / 0.7794 GB Notification: Performance of NFConvertDAE.convert: time 0.0007151/0.5153, allocations: 0.9717 MB / 1.025 GB, free: 10.68 MB / 0.7794 GB Notification: Performance of FrontEnd - DAE generated: time 3.186e-06/0.5153, allocations: 0 / 1.025 GB, free: 10.68 MB / 0.7794 GB Notification: Performance of FrontEnd: time 1.012e-06/0.5153, allocations: 0 / 1.025 GB, free: 10.68 MB / 0.7794 GB Notification: Performance of Transformations before backend: time 9.067e-06/0.5153, allocations: 4 kB / 1.025 GB, free: 10.68 MB / 0.7794 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 166 * Number of variables: 166 Notification: Performance of Generate backend data structure: time 0.001403/0.5167, allocations: 1.004 MB / 1.026 GB, free: 9.613 MB / 0.7794 GB Notification: Performance of prepare preOptimizeDAE: time 3.4e-05/0.5168, allocations: 8.031 kB / 1.026 GB, free: 9.605 MB / 0.7794 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 9.531e-05/0.5169, allocations: 110.7 kB / 1.026 GB, free: 9.488 MB / 0.7794 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001202/0.517, allocations: 76.09 kB / 1.026 GB, free: 9.414 MB / 0.7794 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0007882/0.5178, allocations: 472.3 kB / 1.027 GB, free: 8.914 MB / 0.7794 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.506e-05/0.5179, allocations: 57.69 kB / 1.027 GB, free: 8.859 MB / 0.7794 GB Notification: Performance of preOpt expandDerOperator (simulation): time 8.971e-05/0.518, allocations: 72.38 kB / 1.027 GB, free: 8.789 MB / 0.7794 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.000835/0.5188, allocations: 0.5495 MB / 1.027 GB, free: 8.23 MB / 0.7794 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.483e-05/0.5188, allocations: 0 / 1.027 GB, free: 8.23 MB / 0.7794 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.545e-05/0.5189, allocations: 31.94 kB / 1.027 GB, free: 8.199 MB / 0.7794 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.417e-05/0.5189, allocations: 16 kB / 1.027 GB, free: 8.184 MB / 0.7794 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007661/0.5197, allocations: 433 kB / 1.028 GB, free: 7.762 MB / 0.7794 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002375/0.5221, allocations: 1.888 MB / 1.03 GB, free: 5.773 MB / 0.7794 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005527/0.5226, allocations: 311.2 kB / 1.03 GB, free: 5.461 MB / 0.7794 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002748/0.5229, allocations: 152.8 kB / 1.03 GB, free: 5.309 MB / 0.7794 GB Notification: Performance of preOpt evalFunc (simulation): time 2.901e-05/0.5229, allocations: 7.75 kB / 1.03 GB, free: 5.301 MB / 0.7794 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0003604/0.5233, allocations: 209.9 kB / 1.03 GB, free: 5.086 MB / 0.7794 GB Notification: Performance of pre-optimization done (n=40): time 1.763e-06/0.5233, allocations: 3.938 kB / 1.03 GB, free: 5.082 MB / 0.7794 GB Notification: Performance of matching and sorting (n=40): time 0.0008236/0.5242, allocations: 413.9 kB / 1.031 GB, free: 4.672 MB / 0.7794 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.463e-05/0.5242, allocations: 59.34 kB / 1.031 GB, free: 4.602 MB / 0.7794 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003061/0.5245, allocations: 365.2 kB / 1.031 GB, free: 4.238 MB / 0.7794 GB Notification: Performance of collectPreVariables (initialization): time 6.18e-05/0.5246, allocations: 57.69 kB / 1.031 GB, free: 4.176 MB / 0.7794 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001807/0.5248, allocations: 312 kB / 1.031 GB, free: 3.863 MB / 0.7794 GB Notification: Performance of collectInitialBindings (initialization): time 7.932e-05/0.5249, allocations: 114.4 kB / 1.032 GB, free: 3.75 MB / 0.7794 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001762/0.525, allocations: 142.2 kB / 1.032 GB, free: 3.605 MB / 0.7794 GB Notification: Performance of setup shared object (initialization): time 0.0001091/0.5251, allocations: 354.7 kB / 1.032 GB, free: 3.25 MB / 0.7794 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003304/0.5255, allocations: 165 kB / 1.032 GB, free: 3.09 MB / 0.7794 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004555/0.5259, allocations: 388.2 kB / 1.033 GB, free: 2.617 MB / 0.7794 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005368/0.5265, allocations: 399.8 kB / 1.033 GB, free: 2.164 MB / 0.7794 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.835e-06/0.5265, allocations: 0 / 1.033 GB, free: 2.164 MB / 0.7794 GB Notification: Performance of matching and sorting (n=70) (initialization): time 0.0008777/0.5274, allocations: 0.5438 MB / 1.033 GB, free: 1.605 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 3.218e-05/0.5274, allocations: 33.7 kB / 1.033 GB, free: 1.566 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.684e-06/0.5274, allocations: 7.938 kB / 1.033 GB, free: 1.559 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.779e-05/0.5275, allocations: 8 kB / 1.033 GB, free: 1.551 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002273/0.5277, allocations: 67.84 kB / 1.034 GB, free: 1.484 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.274e-05/0.5277, allocations: 16.39 kB / 1.034 GB, free: 1.469 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005205/0.5282, allocations: 131.4 kB / 1.034 GB, free: 1.34 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.122e-05/0.5283, allocations: 20 kB / 1.034 GB, free: 1.32 MB / 0.7794 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 18 * Number of states: 0 () * Number of discrete variables: 41 ($whenCondition1,$whenCondition2,uWinSta.y,$PRE.uWinSta.y,witWinZonSta.hys4.y,$PRE.witWinZonSta.hys4.y,witWinZonSta.hys3.y,$PRE.witWinZonSta.hys3.y,witWinZonSta.hys5.y,$PRE.witWinZonSta.hys5.y,witWinZonSta.hys2.y,$PRE.witWinZonSta.hys2.y,witWinZonSta.hys1.y,$PRE.witWinZonSta.hys1.y,witWinZonSta.hys.y,$PRE.witWinZonSta.hys.y,witWinZonSta.yEndSetUp,witWinZonSta.yHigUnoCoo,witWinZonSta.yEndSetBac,witWinZonSta.yUnoHeaHig,witWinZonSta.yHigOccCoo,witWinZonSta.yOccHeaHig,noWinZonSta.hys4.y,$PRE.noWinZonSta.hys4.y,noWinZonSta.hys3.y,$PRE.noWinZonSta.hys3.y,noWinZonSta.hys5.y,$PRE.noWinZonSta.hys5.y,noWinZonSta.hys2.y,$PRE.noWinZonSta.hys2.y,noWinZonSta.hys1.y,$PRE.noWinZonSta.hys1.y,noWinZonSta.hys.y,$PRE.noWinZonSta.hys.y,noWinZonSta.and5.u2,noWinZonSta.and3.u2,noWinZonSta.and1.u2,noWinZonSta.and2.u2,noWinZonSta.booToRea.u,noWinZonSta.not1.y,noWinZonSta.con.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (68): * Single equations (assignments): 67 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0002057/0.5285, allocations: 221.6 kB / 1.034 GB, free: 1.098 MB / 0.7794 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 5.02e-05/0.5286, allocations: 35.53 kB / 1.034 GB, free: 1.062 MB / 0.7794 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0006264/0.5292, allocations: 337.4 kB / 1.034 GB, free: 0.7266 MB / 0.7794 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.699e-06/0.5292, allocations: 4 kB / 1.034 GB, free: 0.7227 MB / 0.7794 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.727e-06/0.5292, allocations: 0 / 1.034 GB, free: 0.7227 MB / 0.7794 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.509e-06/0.5292, allocations: 0 / 1.034 GB, free: 0.7227 MB / 0.7794 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0004349/0.5297, allocations: 0.5282 MB / 1.035 GB, free: 148 kB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.933e-06/0.5297, allocations: 0 / 1.035 GB, free: 148 kB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001755/0.5299, allocations: 39.92 kB / 1.035 GB, free: 108 kB / 0.7794 GB Notification: Performance of postOpt tearingSystem (simulation): time 6.262e-06/0.5299, allocations: 4 kB / 1.035 GB, free: 104 kB / 0.7794 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.419e-05/0.5299, allocations: 15.92 kB / 1.035 GB, free: 88 kB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.174e-06/0.5299, allocations: 0 / 1.035 GB, free: 88 kB / 0.7794 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.084e-06/0.5299, allocations: 3.938 kB / 1.035 GB, free: 84 kB / 0.7794 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005469/0.5305, allocations: 346 kB / 1.035 GB, free: 15.73 MB / 0.795 GB Notification: Performance of postOpt removeConstants (simulation): time 6.407e-05/0.5305, allocations: 116.5 kB / 1.035 GB, free: 15.59 MB / 0.795 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.293e-05/0.5306, allocations: 16 kB / 1.035 GB, free: 15.58 MB / 0.795 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002438/0.5309, allocations: 47.94 kB / 1.035 GB, free: 15.53 MB / 0.795 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001673/0.531, allocations: 91.86 kB / 1.035 GB, free: 15.44 MB / 0.795 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.454e-05/0.5311, allocations: 15.98 kB / 1.035 GB, free: 15.43 MB / 0.795 GB Notification: Performance of sorting global known variables: time 0.0001872/0.5313, allocations: 231.2 kB / 1.036 GB, free: 15.2 MB / 0.795 GB Notification: Performance of sort global known variables: time 1.4e-07/0.5313, allocations: 0 / 1.036 GB, free: 15.2 MB / 0.795 GB Notification: Performance of remove unused functions: time 0.0003716/0.5316, allocations: 131.4 kB / 1.036 GB, free: 15.07 MB / 0.795 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 21 ($whenCondition1,$whenCondition2,noWinZonSta.hys.y,noWinZonSta.hys1.y,noWinZonSta.hys2.y,noWinZonSta.hys5.y,noWinZonSta.hys3.y,noWinZonSta.hys4.y,witWinZonSta.yOccHeaHig,witWinZonSta.yHigOccCoo,witWinZonSta.yUnoHeaHig,witWinZonSta.yEndSetBac,witWinZonSta.yHigUnoCoo,witWinZonSta.yEndSetUp,witWinZonSta.hys.y,witWinZonSta.hys1.y,witWinZonSta.hys2.y,witWinZonSta.hys5.y,witWinZonSta.hys3.y,witWinZonSta.hys4.y,uWinSta.y) * Number of discrete states: 12 (noWinZonSta.hys.y,noWinZonSta.hys1.y,noWinZonSta.hys2.y,noWinZonSta.hys5.y,noWinZonSta.hys3.y,noWinZonSta.hys4.y,witWinZonSta.hys.y,witWinZonSta.hys1.y,witWinZonSta.hys2.y,witWinZonSta.hys5.y,witWinZonSta.hys3.y,witWinZonSta.hys4.y) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (40): * Single equations (assignments): 39 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 1 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.0008444/0.5325, allocations: 0.919 MB / 1.037 GB, free: 14.12 MB / 0.795 GB Notification: Performance of simCode: created initialization part: time 0.0008327/0.5333, allocations: 474.4 kB / 1.037 GB, free: 13.65 MB / 0.795 GB Notification: Performance of simCode: created event and clocks part: time 1.653e-06/0.5334, allocations: 5 kB / 1.037 GB, free: 13.64 MB / 0.795 GB Notification: Performance of simCode: created simulation system equations: time 0.0002881/0.5336, allocations: 163.8 kB / 1.037 GB, free: 13.48 MB / 0.795 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0002822/0.5339, allocations: 53.34 kB / 1.037 GB, free: 13.43 MB / 0.795 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004476/0.5384, allocations: 3.832 MB / 1.041 GB, free: 9.402 MB / 0.795 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003625/0.5388, allocations: 0.859 MB / 1.042 GB, free: 8.52 MB / 0.795 GB Notification: Performance of simCode: alias equations: time 0.0002278/0.539, allocations: 55.44 kB / 1.042 GB, free: 8.461 MB / 0.795 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002576/0.5393, allocations: 211.3 kB / 1.042 GB, free: 8.254 MB / 0.795 GB Notification: Performance of SimCode: time 2.4e-07/0.5393, allocations: 0 / 1.042 GB, free: 8.254 MB / 0.795 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 2.208/2.747, allocations: 9.743 MB / 1.052 GB, free: 14.7 MB / 0.8106 GB Notification: Performance of buildModelFMU: Generate platform static: time 10.56/13.3, allocations: 11.7 kB / 1.052 GB, free: 14.68 MB / 0.8106 GB (rm -f Buildings_10_Buildings.Controls.OBC.ASHRAE.G36.ZoneGroups.Validation.ZoneStatus.pipe ; mkfifo Buildings_10_Buildings.Controls.OBC.ASHRAE.G36.ZoneGroups.Validation.ZoneStatus.pipe ; head -c 1048576 < Buildings_10_Buildings.Controls.OBC.ASHRAE.G36.ZoneGroups.Validation.ZoneStatus.pipe >> ../files/Buildings_10_Buildings.Controls.OBC.ASHRAE.G36.ZoneGroups.Validation.ZoneStatus.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_10_Buildings.Controls.OBC.ASHRAE.G36.ZoneGroups.Validation.ZoneStatus_res.mat --tempDir=temp_Buildings_10_Buildings_Controls_OBC_ASHRAE_G36_ZoneGroups_Validation_ZoneStatus_fmu --startTime=0 --stopTime=86400 --timeout=50 --tolerance=1e-06 Buildings_10_Buildings_Controls_OBC_ASHRAE_G36_ZoneGroups_Validation_ZoneStatus.fmu > Buildings_10_Buildings.Controls.OBC.ASHRAE.G36.ZoneGroups.Validation.ZoneStatus.pipe 2>&1)